Although that is just temporary but we feel real job when we sometimes win in gambling and that is just normal as a gambler, on the next day we do gamble again longing to win more but we could end up losing.
We must accept whatever the results in the gambling but we must have the joy in doing it.
Yup! accepting really is the way so you would not regret and try to get back what you have lost in gambling in that way you will not have too many expenses in gambling and no frustration over what you have lost.
I don't think we can accept loosing while in that moment, But after that day you will just realize what you've lose before you can really accepts what happen. So after you realize what happen on that day be sure that you must learn something from it. small or big learnings must do. So for the next time you gamble you must know what will you do.